GB 1866 SG101 Plate 4 on Envelope to Messina

cover to Sicily, bearing SG101, 1/- green plate 4 tied by London duplex, oval PD in red, endorsed via Marseille and boxed handstamp PIROSCAFI POSTALi FRANCESI in black, with transit and arrival backstamp. Scarce Plate on cover. (pt)    ID: 13441